我正在尝试加载解析Google Weather API响应（中文回复）。
Here是API调用。
// This code fails with the following error
$xml = simplexml_load_file('http://www.google.com/ig/api?weather=11791&hl=zh-CN');
（！）警告：simplexml_load_string（） [function.simplexml负载字符串]： 实体：第1行：解析器错误：输入 是不正确的UTF-8，表示编码 ！字节：0xB6 0xE0 0xD4 0xC6 in 第11行的C：\ htdocs \ weather.php
为什么加载此响应会失败？
如何对响应进行编码/解码，以便simplexml正确加载？
编辑：以下是代码和输出。
<?php
$googleData = file_get_contents('http://www.google.com/ig/api?weather=11102&hl=zh-CN');
$xml = simplexml_load_string($googleData);
（！）警告：simplexml_load_string（） [function.simplexml负载字符串]： 实体：第1行：解析器错误：输入 是不正确的UTF-8，表示编码 ！字节：0xB6 0xE0 0xD4 0xC6 in 第3行的C：\ htdocs \ test4.php调用 堆 时间记忆功能位置1 0.0020 314264 {main}（ ）.. \ test4.php：0 2 0.1535 317520 simplexml_load_string （string（1364））.. \ test4.php：3
（！）警告：simplexml_load_string（） [function.simplexml负载字符串]： t_system 数据= “SI”/＆GT;
（！）警告：simplexml_load_string（） [function.simplexml-load-string]：^ in 第3行的C：\ htdocs \ test4.php调用 堆 时间记忆功能位置1 0.0020 314264 {main}（ ）.. \ test4.php：0 2 0.1535 317520 simplexml_load_string （string（1364））.. \ test4.php：3
答案 0 :(得分：20)
这里的问题是SimpleXML没有查看HTTP标头来确定文档中使用的字符编码，只是假设它是UTF-8，即使Google的服务器确实将其宣传为
Content-Type: text/xml; charset=GB2312
您可以编写一个函数，使用超级机密魔术变量$http_response_header查看该标题，并相应地转换响应。这样的事情：
function sxe($url)
{
$xml = file_get_contents($url);
foreach ($http_response_header as $header)
{
if (preg_match('#^Content-Type: text/xml; charset=(.*)#i', $header, $m))
{
switch (strtolower($m[1]))
{
case 'utf-8':
// do nothing
break;
case 'iso-8859-1':
$xml = utf8_encode($xml);
break;
default:
$xml = iconv($m[1], 'utf-8', $xml);
}
break;
}
}
return simplexml_load_string($xml);
}
答案 1 :(得分：5)
更新：我可以重现这个问题。此外，当我输出原始XML提要时，Firefox会自动将字符集嗅探为“简体中文”。 Google Feed正在提供不正确的数据（中文简体字符而不是UTF-8字符），或者在浏览器中未提取时提供不同的数据 - Firefox中的内容类型标题明确指出utf-8。
将来自简体中文（GB18030，这是Firefox给我的）的传入Feed转换为UTF-8的工作原理：
$incoming = file_get_contents('http://www.google.com/ig/api?weather=11791&hl=zh-CN');
$xml = iconv("GB18030", "utf-8", $incoming);
$xml = simplexml_load_string($xml);
答案 2 :(得分：2)
刚刚遇到这个。 这似乎有效（我在网上找到的功能本身，只是更新了一点）。：
header('Content-Type: text/html; charset=utf-8');
function getWeather() {
$requestAddress = "http://www.google.com/ig/api?weather=11791&hl=zh-CN";
// Downloads weather data based on location.
$xml_str = file_get_contents($requestAddress,0);
$xml_str = preg_replace("/(<\/?)(\w+):([^>]*>)/", "$1$2$3", $xml_str);
$xml_str = iconv("GB18030", "utf-8", $xml_str);
// Parses XML
$xml = new SimplexmlElement($xml_str, TRUE);
// Loops XML
$count = 0;
echo '<div id="weather">';
foreach($xml->weather as $item) {
foreach($item->forecast_conditions as $new) {
echo "<div class=\"weatherIcon\">\n";
echo "<img src='http://www.google.com/" .$new->icon['data'] . "' alt='".$new->condition['data']."'/><br>\n";
echo "<b>".$new->day_of_week['data']."</b><br>";
echo "Low: ".$new->low['data']." High: ".$new->high['data']."<br>";
echo "\n</div>\n";
}
}
echo '</div>';
}
getWeather();
答案 3 :(得分：2)
这是我在php中用来解析Google Weather API的脚本。
<?php
function sxe($url)
{
$xml = file_get_contents($url);
foreach ($http_response_header as $header)
{
if (preg_match('#^Content-Type: text/xml; charset=(.*)#i', $header, $m))
{
switch (strtolower($m[1]))
{
case 'utf-8':
// do nothing
break;
case 'iso-8859-1':
$xml = utf8_encode($xml);
break;
default:
$xml = iconv($m[1], 'utf-8', $xml);
}
break;
}
}
return simplexml_load_string($xml);
}
$xml = simplexml_load_file('http://www.google.com/ig/api?weather=46360&h1=en-us');
$information = $xml->xpath("/xml_api_reply/weather/forecast_information");
$current = $xml->xpath("/xml_api_reply/weather/current_conditions");
$forecast = $xml->xpath("/xml_api_reply/weather/forecast_conditions");
print "<br><br><center><div style=\"border: 1px solid; background-color: #dddddd; background-image: url('http://mc-pdfd-live.dyndns.org/images/clouds.bmp'); width: 450\">";
print "<br><h3>";
print $information[0]->city['data'] . " " . $information[0]->unit_system['data'] . " " . $information[0]->postal_code['data'];
print "</h3>";
print "<div style=\"border: 1px solid; width: 320px\">";
print "<table cellpadding=\"5px\"><tr><td><h4>";
print "Now";
print "<br><br>";
print "<img src=http://www.google.com" . $current[0]->icon['data'] . "> ";
print "</h4></td><td><h4>";
print "<br><br>";
print " " . $current[0]->condition['data'] . " ";
print " " . $current[0]->temp_f['data'] . " °F";
print "<br>";
print " " . $current[0]->wind_condition['data'];
print "<br>";
print " " . $current[0]->humidity['data'];
print "<h4></td></tr></table></div>";
print "<table cellpadding=\"5px\"><tr><td>";
print "<table cellpadding=\"5px\"><tr><td><h4>";
print "Today";
print "<br><br>";
print "<img src=http://www.google.com" . $forecast[0]->icon['data'] . "> ";
print "</h4></td><td><h4>";
print "<br><br>";
print $forecast[0]->condition['data'];
print "<br>";
print "High " . $forecast[0]->high['data'] . " °F";
print "<br>";
print "Low " . $forecast[0]->low['data'] . " °F";
print "</h4></td></tr></table>";
print "<table cellpadding=\"5px\"><tr><td><h4>";
print $forecast[2]->day_of_week['data'];
print "<br><br>";
print "<img src=http://www.google.com" . $forecast[2]->icon['data'] . "> ";
print "</h4></td><td><h4>";
print "<br><br>";
print " " . $forecast[2]->condition['data'];
print "<br>";
print " High " . $forecast[2]->high['data'] . " °F";
print "<br>";
print " Low " . $forecast[2]->low['data'] . " °F";
print "</h4></td></tr></table>";
print "</td><td>";
print "<table cellpadding=\"5px\"><tr><td><h4>";
print $forecast[1]->day_of_week['data'];
print "<br><br>";
print "<img src=http://www.google.com" . $forecast[1]->icon['data'] . "> ";
print "</h4></td><td><h4>";
print "<br><br>";
print " " . $forecast[1]->condition['data'];
print "<br>";
print " High " . $forecast[1]->high['data'] . " °F";
print "<br>";
print " Low " . $forecast[1]->low['data'] . " °F";
print "</h4></td></tr></table>";
print "<table cellpadding=\"5px\"><tr><td><h4>";
print $forecast[3]->day_of_week['data'];
print "<br><br>";
print "<img src=http://www.google.com" . $forecast[3]->icon['data'] . "> ";
print "</h4></td><td><h4>";
print "<br><br>";
print " " . $forecast[3]->condition['data'];
print "<br>";
print " High " . $forecast[3]->high['data'] . " °F";
print "<br>";
print " Low " . $forecast[3]->low['data'] . " °F";
print "</h4></td></tr></table>";
print "</td></tr></table>";
print "</div></center>";
?>
答案 4 :(得分：1)
尝试添加url查询参数eo = utf-8。在这种情况下，答案将是UTF-8编码。它帮助了我。
http://www.google.com/ig/api?weather=?????°ree=??????&oe=utf-8&hl=es